{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"6a029b3d4923","name":"PISTON KIT XT TT SR 500 90.00, FORGED WOSSNER 8505D300","sku":"56-W4045+300","brand":"Wossner","mpn":null,"gtin":null,"condition":"new","inStock":false,"stock":0,"price":{"amount":231.1,"formatted":"£231.10"},"summary":"Wossner forged piston kit designed for European Yamaha XT500, TT500, and SR500 models. Manufactured in Germany, this piston offers superior strength and heat transfer efficiency. The elliptical design ensures even load distribution, reducing localized pressure and preventing piston collapse. Features forged construction for enhanced durability and strength, optimized heat transfer for improved performance, and an elliptical design for a uniform bearing surface and reduced wear. Designed for 4-stroke engines. Specifications: Bore Size 90.00 mm, Actual Bore 89.93 mm, Stroke 84.00 mm, Clearance 0.07 mm, Compression Height 29.00 mm, Dome Volume +13.70 cm&sup3;, Compression Ratio 9.80:1, Displacement 449 cm&sup3;. Made in Germany. Wossner Part No. 8505D300. Lock P/N CW20. Pin P/N WP052. Ring Set P/N 900XSY.","attributes":[{"label":"General Product Group","value":"Engine"},{"label":"General Product Type","value":"Pistons & Kits"},{"label":"General Size","value":"90mm"},{"label":"Variant Id","value":"255517"}],"image":"https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W4045_2B300/e742aee07b226c5a.jpg","images":["https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W4045_2B300/e742aee07b226c5a.jpg","https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W4045_2B300/b73df0f897118113.jpg","https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W4045_2B300/df925a11bd674e3e.jpg","https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W4045_2B300/3c744c17770039f8.jpg"],"description":"Wossner forged piston kit designed for European Yamaha XT500, TT500, and SR500 models. Manufactured in Germany, this piston offers superior strength and heat transfer efficiency. The elliptical design ensures even load distribution, reducing localized pressure and preventing piston collapse. Features forged construction for enhanced durability and strength, optimized heat transfer for improved performance, and an elliptical design for a uniform bearing surface and reduced wear. Designed for 4-stroke engines. Specifications: Bore Size 90.00 mm, Actual Bore 89.93 mm, Stroke 84.00 mm, Clearance 0.07 mm, Compression Height 29.00 mm, Dome Volume +13.70 cm&sup3;, Compression Ratio 9.80:1, Displacement 449 cm&sup3;. Made in Germany. Wossner Part No. 8505D300. Lock P/N CW20. Pin P/N WP052. Ring Set P/N 900XSY.","descriptionMarkdown":"### Wossner Forged Piston Kit for Yamaha XT/TT/SR 500\n\nUpgrade your Yamaha XT500, TT500, or SR500 with this high-performance forged piston kit from Wossner. Engineered in Germany, this piston is designed for superior strength, durability, and improved heat transfer efficiency, contributing to enhanced engine performance. The advanced elliptical design ensures even load distribution across the piston surface, minimizing localized pressure points and reducing the risk of piston collapse for a longer service life.\n\nThis piston is specifically designed for 4-stroke engines and offers a significant increase in compression ratio compared to OEM specifications.\n\n#### Key Features:\n\n \n- Forged Construction: Provides exceptional strength and resistance to wear and high temperatures.\n \n- Optimized Heat Transfer: Facilitates efficient cooling, leading to better performance and longevity.\n \n- Elliptical Design: Creates a uniform bearing surface, reducing friction and wear.\n \n- Increased Compression Ratio: Offers improved power output.\n \n- Made in Germany: Ensures high standards of manufacturing quality and precision.\n\n#### Specifications:\n\n \n- Bore Size: 90.00 mm\n \n- Actual Bore: 89.93 mm\n \n- Stroke: 84.00 mm\n \n- Clearance: 0.07 mm\n \n- Compression Height: 29.00 mm\n \n- Dome Volume: +13.70 cm&sup3;\n \n- Compression Ratio: 9.80:1 (OEM: 9.00:1)\n \n- Displacement: 449 cm&sup3;\n\n**Included Components:**\n\n \n- Wossner Piston Part No.: 8505D300\n \n- Lock P/N: CW20\n \n- Pin P/N: WP052\n \n- Ring Set P/N: 900XSY","weightGrams":null,"fitments":[],"collections":[{"name":"Engine","url":"https://www.2brosparts.com/api/agent/collection/GB/engine"},{"name":"Pistons & Kits","url":"https://www.2brosparts.com/api/agent/collection/GB/pistons-kits"}],"links":{"page":"https://www.2brosparts.com/products/piston-kit-xt-tt-sr-500-9000-forged-wossner-8505d300","buyOneNow":null,"basketWithThis":null}},"market":{"country":"GB","countryName":"United Kingdom","locale":"en-gb","currency":"GBP","exchangeRateFromGbp":1,"pricesIncludeUkVat":true,"checkoutTax":null,"delivery":[{"name":"Standard","description":"Orders £15.00–£59.99 · 2–4 business days","carrier":null,"estimatedDays":"2–4 business days","price":{"amount":4.99,"formatted":"£4.99"},"free":false,"minimumOrder":{"amount":0,"formatted":"£0.00","gbp":0},"weightGrams":null},{"name":"Standard","description":"Orders £60.00 and up · 2–4 business days","carrier":null,"estimatedDays":"2–4 business days","price":{"amount":0,"formatted":"£0.00"},"free":true,"minimumOrder":{"amount":60,"formatted":"£60.00","gbp":60},"weightGrams":null}],"storeUrl":"https://www.2brosparts.com"},"navigate":{"start":"https://www.2brosparts.com/api/agent","search":"https://www.2brosparts.com/api/agent/search/GB/{words+joined+with+plus}"},"howToBuy":{"summary":"Build a basket for the shopper and give them one checkout link. Every URL is a plain path (no query string) and a GET. Nothing is stored between calls.","checkoutLinkFormat":"https://www.2brosparts.com/api/agent/checkout/GB/{basketKey}:{quantity},{basketKey}:{quantity}","steps":["1. Find products: follow links in these responses, or fetch https://www.2brosparts.com/api/agent/search/GB/{words+joined+with+plus} (e.g. https://www.2brosparts.com/api/agent/search/GB/brake+pads). Every product has a basketKey.","2. Optional check: https://www.2brosparts.com/api/agent/basket/GB/{basketKey}:{quantity},{basketKey}:{quantity} returns stock, totals per delivery option and the checkout link.","3. Give the shopper the checkout link. Opening it fills their basket with exactly these items (replacing what was there) and opens checkout for United Kingdom. They pay on 2brosparts.com through Stripe."],"noFetchNeeded":"You can write the checkout link yourself from basketKeys and quantities; nothing has to be fetched first. Each product also has links.buyOneNow, a ready link for one unit.","stateless":"Nothing is saved on our side. The items part of the URL is the whole basket: to change it, write the link again with the new list.","itemsFormat":"basketKey:quantity pairs joined by commas, e.g. 04f24aad4d68:2,7c1e9a0b3f2d:1. Quantity defaults to 1. Up to 50 products, 100 each.","country":"GB is the shopper's delivery country. Swap it for theirs (US, DE, FR…) in any URL; currency, tax and delivery follow it.","tips":["Put everything the shopper wants in one link.","Optionally add your name as a last path segment on checkout links (…/checkout/GB/<items>/claude) so the sale is credited to you.","The checkout link is for the shopper's browser. Do not open it yourself.","Signed-in trade account holders see their trade prices at checkout."]}}